unidirectional airflow造句

例句与造句

1. On inhalation and exhalation air moves through the airways in the same direction, thus creating a unidirectional airflow through the lungs.
2. If you can't afford that, put two cheap ~ 60mm fans in, one sucking the air in from the back and the other expelling air from the front ( so you get unidirectional airflow ).
3. It's difficult to find unidirectional airflow in a sentence. 用unidirectional airflow造句挺难的